<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>图书管理系统</title>
    <h1> 这是图书管理系统</h1>

</head>
<body>
    <input type = "text">
    <input type = "button" value = "点击登录">
    <input type = "password">
    <input type =  "radio" name = "sex">男
    <input type =  "radio" name = "sex" checked = "checked">女
</body>
</html>